Christian III was the King of Denmark and Norway from 1534 until his death in 1559. He was a member of the Oldenburg dynasty and is best known for establishing the Lutheran Reformation in Denmark, which led to significant changes in the church and state. His reign marked the transition from Catholicism to Protestantism in the region. During his rule, Christian III focused on strengthening the monarchy and centralizing power. He implemented various reforms in governance and the economy, which helped stabilize the kingdom after the Count's Feud, a civil war that had threatened his rule. His legacy includes the promotion of education and the arts.